Improvement in amalgamating-barrels



v J. B.'J0HNS0N.

Amalgamating Barrel.

No. 43,507. Patented July 12, "1864.

NITED STATES ATENT CFFicE.

JAMES B. JOHNSON, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN AMALGAMATlNG-BARRELS.

Specification forming part of Letters Patent No. 43,501, dated July 12, 1864.

To all zrhom it may concern ie it known that I, J. B. JOHNSON, of the city and county of San Francisco, and State of California, have invented a new and 11nproved Method ofMakingAm-algamating Bar rels; and I do hereby declare that the following is a full, clear, and exact description of the construction of the same, reference being had to the accompanying drawings, making a part of this specification.

Figure 1 presents an elevatiOn of the exterior of the barrel. Fig. 2 is a section through the center, giving a view of the inner wood casing. Fig. 3 is an end view, with a portion of the end removed so as to show the ends of wood lining.

The outer casin g or shell is of iron or other suitable material, and that represented in the drawings is made in four pieces, exclusive of the ends, one of which pieces is represented in Fig. 1 at A. The pieces are formed with flanges F, by means of which they are connected together, forminga perfect cylinder. C is the cover of the orifice through which the pulp and quicksilver is introducedinto the barrel. B is a bar to fasten the cover down. 0 is an opening in the wood casing with bars across the same, as shown in Fig. 2. This opening is directly'in line with the cover C.

W W are wood with the grain running toward the inside of the barrel and form a casing around the entire inside circumference of the barrel, and are kept in position by being dovetailed into the outside shell, A, as shown in Fig. 3,- or in any other suitable manner.

The outside ends of the barrel are made of iron or other suitable material, and are formed with an outside rim, 1%, and cross arms S S, to which are attached the journals J J. These ends have also an inside lining, L, of wood.

The rims B have ears EE upon them, through purpose described.

' JAS. B. JOHNSON.

Witnesses CHAS. .R. BOND, A. S. TIBBEY. 

